Two-way wireless system ABAX
ACU-100
14
If the a.m. message fails to appear on the display after connection, you should:
−
check that the option of programming by means of LCD keypad has been selected on the
controller DIP-switches;
−
check that the cables connecting the keypad with controller have been properly connected;
−
check that address 0 has been set in the LCD keypad.
In order to check the keypad address and, if necessary, to change it:
1. Disconnect the +KPD keypad power supply and the data bus cables (CKM, DTM).
2. Short the CKM, DTM keypad terminals.
3. Connect the keypad power supply.
4. The keypad address will be displayed:
Fig. 4. Programming the keypad address.
5. Change the address to 0, if necessary. The keypad will acknowledge performance of the
function with four short and one long beeps.
6. Connect the keypad to the ACU-100 controller as required (CKM, DTM).
4.3 C
ONNECTING COMPUTER TO THE CONTROLLER
If the ACU-100 controller is to be programmed by means of a computer, the computer must
be connected to the RS-232 port. Connection between the controller RS-232 port and the
computer port should be made as shown in the picture below (you can buy a ready-made
cable manufactured by SATEL).
Notes:
•
Do not short or touch the RS-232 port with your fingers.
•
Prior to connecting the cable, remove preliminarily the electrostatic charge, e.g. by
touching a grounded piece of equipment (faucet, heater, etc.) with top of your palm.
•
It is recommended that the cable be first connected to the controller port.
1
2
5
RXD
COM
DTR
4
2
5
TXD
COM
DSR
3
RXD
TXD
3
4
8
RTS
CTS
Fig. 5. Connection of computer to the controller serial port. PIN5 plug is shown on the left.
DB-9 female plug is shown on the right, as seen from solder side.
n=0...7,
current address of the keypad
